Cornett Heating & Cooling of Maryland

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About Us

We service the Serverna Park, Annapolis, Arnold, Pasadena, Glen Burnie, Millersville and surrounding areas.  Reach out to us if you’d like a consultation, 410-801-7771

About Cornett Heating & Cooling


Cornett Heating & Cooling, located in Severna Park, Maryland, is your premier destination for top-quality HVAC (Heating, Ventilation, and Air Conditioning) services. Our team of highly trained and certified technicians is dedicated to providing exceptional HVAC solutions for both residential and commercial customers. When it comes to HVAC installation, maintenance, and repairs, we have the expertise to keep your indoor environment comfortable year-round. At Cornett Heating & Cooling, we prioritize energy efficiency and sustainability, offering eco-friendly HVAC options to help you reduce your energy bills and environmental impact.


As your trusted HVAC company in Severna Park, we take pride in our commitment to customer satisfaction and our deep roots in the local community. Our website, https://www.cornetthvac.com/, showcases our professionalism and the range of services we offer. Whether you need a new HVAC system installed, routine maintenance, or emergency repairs, you can rely on Cornett Heating & Cooling to deliver reliable, cost-effective solutions. Contact us today for all your heating and cooling needs, and experience the difference our expertise makes in keeping your home or business comfortable and energy-efficient.


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Read what 300+ clients have said about our services:

Recent Work

506 Devonshire Lane ,Severna Park, MD, US

Cornett Heating & Cooling proudly installed a top-of-the-line 3 Ton Goodman gas furnace in a residence located in Severna Park, Maryland, ensuring optimal comfort and efficiency for our valued customers. Our expert team meticulously handled every aspect of the installation, from precise sizing to seamless integration, guaranteeing unparalleled performance and reliability. Trust Cornett Heating & Cooling for all your HVAC needs in Severna Park and beyond, where quality craftsmanship meets exceptional service.



506 Devonshire Lane , Severna Park, MD, US
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  • Our Services
  • Our Services: Repairs
  • Our Services: Full Installs

16 Sunset Drive ,Severna Park, MD, US

Curious about the difference a professional upgrade can make? Check out this before-and-after from a recent project in Severna Park, Maryland. Cornett Heating & Cooling installed this efficient Goodman 3 Ton A2L Straight AC in just one day. Ready to see more of our local expertise? Explore our interactive portfolio!

16 Sunset Drive , Severna Park, MD, US
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  • Our Services
  • Our Services: Repairs
  • Our Services: Full Installs

Customer Reviews

Alvina Williams — review for Cornett Heating & Cooling
Alvina Williams - 626 Shore Forest Drive , Glen Burnie, MD, US
The experience with Cornett Heating & Cooling was very professional and excellent customer service from setting up the request on line and a follow up call from the office, to set up the official appointment for maintenance service for my HVAC System. The Technicians were on time, running ahead of their schedule, and afforded me the coursety with a phone call to see if they could arrive earlier which was excellent for me. Once the Technicians entered my home, they were very professional, consi... Read more
Cornett Heating & Cooling response
Response from Cornett Heating & Cooling2 years ago

Thank you so much for taking the time to leave us such a wonderful review. We really appreciate your business and glad we could be of assistance.

Kyle Wanzer — review for Cornett Heating & Cooling
Kyle Wanzer - 8145 Silverado Court , Pasadena, MD, US
Zach was super knowledgeable and insightful. Happy to share his knowledge with an internet warrior. I knew this would be a pass/fail endeavor and while we are still slowly making our way back to normal in the AC department (only been a few hours and I know it takes time), it is improving. Slowly but surely. He also shared the potentials for the future which is extremely helpful considering the age of our unit. Helps us prepare for a future expense. Only thing he needs improvement on….rat snakes ... Read more
Cornett Heating & Cooling response
Response from Cornett Heating & Cooling2 years ago

Thank you for taking the time to leave us the amazing feedback :)

Carhy Maclean — review for Cornett Heating & Cooling
Carhy Maclean
Got here fast, and fixed the problem. Thank you very much!!
Cornett Heating & Cooling response
Response from Cornett Heating & Cooling2 years ago

Thank you for your feedback!

Mimi Stratman — review for Cornett Heating & Cooling
Mimi Stratman
Great company great service. The whole team lives up to the 5 star reviews. The turn around time was amazing. 🤩
Cornett Heating & Cooling response
Response from Cornett Heating & Cooling2 years ago

Glad we could be of assistance! Thank you for your kind words!

Jon MacKay — review for Cornett Heating & Cooling
Jon MacKay - 113 Magnolia Avenue , Pasadena, MD, US
Excellent service
Cornett Heating & Cooling response
Response from Cornett Heating & Cooling2 years ago

Thank you for your feedback!